Search found 48 matches

by Franco
Sun Aug 05, 2018 4:09 pm
Forum: General Discussion
Topic: ESP32 as AP does not oparate
Replies: 1
Views: 424

Re: ESP32 as AP does not oparate

by Franco
Tue Jul 31, 2018 9:54 am
Forum: General Discussion
Topic: latitude and longitude using esp32
Replies: 2
Views: 878

Re: latitude and longitude using esp32

You can also use the same principles as what described in this appnote. ttps://www.espressif.com/sites/default/files/d ... 266_en.pdf
by Franco
Mon Jul 16, 2018 9:30 am
Forum: Hardware
Topic: measure 9v to 18v
Replies: 8
Views: 1489

Re: measure 9v to 18v

Hi Mitch, my friends from HW will comment about the clamping diodes, I think you can rely on the ones on the ESP32 IO but better double check. As far as averaging, you can try with 20 samples and optimize accordingly. Have fun.
by Franco
Sun Jul 15, 2018 3:00 pm
Forum: General Discussion
Topic: ROM, RAM and flash difference and usage
Replies: 5
Views: 1099

Re: ROM, RAM and flash difference and usage

A module would be a safer approach, if you use an ESP32 chip you will have to design the RF section which is not such an easy job. As far as your specific question, as answered previously, your code will be stored in the SPI flash which is: inside the ESP32-WROOM-32 module, outside if you use an ESP...
by Franco
Sun Jul 15, 2018 2:49 pm
Forum: Hardware
Topic: measure 9v to 18v
Replies: 8
Views: 1489

Re: measure 9v to 18v

To complement the answers above, you may want to add a 100n cap between input and gnd to filter the ignition spikes and other noise, and do your ADC measurements as running average.
by Franco
Mon May 28, 2018 9:23 am
Forum: General Discussion
Topic: ESP32-Wrover and ESP32-Wrover 1
Replies: 1
Views: 443

Re: ESP32-Wrover and ESP32-Wrover 1

Hello, ESP32-WROVER has an embedded PCB antenna, so it does not require external antenna. The ESP32-WROVER-I (it's an I like in IPEX), mounts an IPEX connector for external antenna. So in other words, if you need to attach an external antenna, you have to go for the -I version, if your application c...
by Franco
Wed Mar 14, 2018 12:06 pm
Forum: General Discussion
Topic: New Product using ESP32
Replies: 5
Views: 1394

Re: New Product using ESP32

This document gives detailed information about host devices with integrated wireless module https://library.ul.com/wp-content/uploads/sites/40/2015/02/UL_WP_Draft_FCC-Approval-of-Host-Devices-with-Integrated-Wireless-Modules_v6.pdf Also, though the ESP-WROOM-32 is Wi-Fi Alliance certified, you must ...
by Franco
Mon Dec 04, 2017 4:31 pm
Forum: General Discussion
Topic: ESP32 as 'dump' wifi dongle over sdio
Replies: 2
Views: 1253

Re: ESP32 as 'dump' wifi dongle over sdio

Hi Adrian, did you check http://espressif.com/sites/default/file ... eet_en.pdf ?
It was designed with the application you describe in mind. If you like it I can send you the drivers etc.
by Franco
Tue Nov 28, 2017 4:22 pm
Forum: Hardware
Topic: What matching components should be used for the 5x5 QFN package?
Replies: 9
Views: 2323

Re: What matching components should be used for the 5x5 QFN package?

On this document it is stated "feature optimized antenna and RF performance" https://www.linkedin.com/feed/update/ur ... 1742822400

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